diff --git a/Source/JavaScriptCore/runtime/OptionsList.h b/Source/JavaScriptCore/runtime/OptionsList.h
index cbcc27913b850..c5b1091f8a911 100644
--- a/Source/JavaScriptCore/runtime/OptionsList.h
+++ b/Source/JavaScriptCore/runtime/OptionsList.h
@@ -527,7 +527,7 @@ bool hasCapacityToUseLargeGigacage();
     v(Bool, verboseBBQJITInstructions, false, Normal, "Logs instruction information during BBQ JIT"_s) \
     v(Bool, useWasmLLInt, true, Normal, nullptr) \
     v(Bool, useBBQJIT, true, Normal, "allows the BBQ JIT to be used if true"_s) \
-    v(Bool, useOMGJIT, true, Normal, "allows the OMG JIT to be used if true"_s) \
+    v(Bool, useOMGJIT, !is32Bit(), Normal, "allows the OMG JIT to be used if true"_s) \
     v(Bool, useWasmLLIntPrologueOSR, true, Normal, "allows prologue OSR from wasm LLInt if true"_s) \
     v(Bool, useWasmLLIntLoopOSR, true, Normal, "allows loop OSR from wasm LLInt if true"_s) \
     v(Bool, useWasmLLIntEpilogueOSR, true, Normal, "allows epilogue OSR from wasm LLInt if true"_s) \